Home / 7,868.12-11,801.34-4,937.72

Finding the Fourth Proportional to 7,868.12, 11,801.34 and 4,937.72

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Solution

The fourth proportional to 7,868.12, 11,801.34 and 4,937.72 is: 7,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.12 : 11,801.34 = 4,937.72 : x
  2. Step 2: Convert to fraction form
    7,868.12/11,801.34 = 4,937.72/x
  3. Step 3: Cross multiply
    7,868.12x = 11,801.34 × 4,937.72
  4. Step 4: Simplify right side
    7,868.12x = 58,271,712.54
  5. Step 5: Solve for x
    x = 58,271,712.54/7,868.12
  6. Step 6: Final answer
    x = 7,406.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.